<template>
  <div  class='home-category'  @mouseleave="goodsID=null">
    <ul  class="menu">
      <li :class="{active:goodsID === item.id}" @mouseenter="goodsID= item.id" v-for="item in $store.getters['calt/cateList']" :key="item.id">

        <RouterLink  to="/">{{item.name}}</RouterLink>
          <!-- 二级 -->
       <template v-if="item.children">
            <RouterLink v-for="obj in item.children" :key="obj.id" to="/">{{obj.name}}</RouterLink>
       </template>
        <span v-else>
             <XtxSkeleton width="100px" height="18px" bg="rgba(255,255,255,0.2)" />
        </span>
      </li>

      <!-- 品牌 -->
       <li @mouseenter="goodsID='brand'" :class="{active:goodsID === brand.id}" >
        <RouterLink  to="/">{{brand.name}}</RouterLink>
        <RouterLink v-for="objs in brand.children" :key="objs.id" to="/">{{objs.name}}</RouterLink>

      </li>
    </ul>
     <!-- 弹层 -->
<div v-if='goodsID!=="brand" ' class="layer" :class="{'adds':goodsID===null}" >
  <h4>分类推荐 <small>根据您的购买或浏览记录推荐</small></h4>
  <ul >
    <li  v-for="item in goods" :key="item.id">
      <RouterLink to="/">
        <img :src="item.picture" alt="">
        <div class="info">
          <p class="name ellipsis-2">{{item.name}}）</p>
          <p class="desc ellipsis">{{item.desc}}</p>
          <p class="price"><i>¥</i>{{item.price}}</p>
        </div>
      </RouterLink>
    </li>
  </ul>
</div>
<!-- 品牌弹窗 -->
 <div v-else class="layer"  :class="{'adds':goodsID===null}" >
      <h4>品牌推荐 <small>根据您的购买或浏览记录推荐</small></h4>
      <!-- 品牌数据 -->
      <ul>
        <li  class="brand" v-for="item in brand.brands" :key="item.id">
          <RouterLink to="/">
            <img :src="item.picture" alt="">
            <div class="info">
              <p class="place"><i class="iconfont icon-dingwei"></i>{{item.place}}</p>
              <p class="name ellipsis">{{item.name}}</p>
              <p class="desc ellipsis-2">{{item.desc}}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
    </div>
  </div>

</template>

<script>
import { useStore } from 'vuex'
import { computed, ref, reactive } from 'vue'
import { findBrand } from '@/api/home'
export default {
  name: 'HomeCategory',
  setup () {
    const goodsID = ref(null)
    const store = useStore()
    // 基于id获取右侧对应的商品数据
    const goods = computed(() => {
      const cate = store.state.calt.list.find(item => item.id === goodsID.value)
      return cate ? cate.goods : []
    })
    const brand = reactive({
      id: 'brand',
      name: '品牌',
      children: [{ id: 'brand-children', name: '品牌推荐' }],
      brands: []
    })
    // 调用接口
    findBrand().then(res => {
      brand.brands = res.result
    })

    return {
      goodsID, goods, brand
    }
  }

}
</script>

<style scoped lang='less'>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0,0,0,0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover {
        background: @xtxColor;
      }
     &.active {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
}
.layer {
  width: 990px;
  height: 500px;
  background: rgba(255,255,255,0.8);
  position: absolute;
  left: 250px;
  top: 0;
  display: none;
  padding: 0 15px;
  h4 {
    font-size: 20px;
    font-weight: normal;
    line-height: 80px;
    small {
      font-size: 16px;
      color: #666;
    }
  }
  ul {
    display: flex;
    flex-wrap: wrap;
    li {
      width: 310px;
      height: 120px;
      margin-right: 15px;
      margin-bottom: 15px;
      border: 1px solid #eee;
      border-radius: 4px;
      background: #fff;
      &:nth-child(3n) {
        margin-right: 0;
      }
      a {
        display: flex;
        width: 100%;
        height: 100%;
        align-items: center;
        padding: 10px;
        &:hover {
          background: #e3f9f4;
        }
        img {
            width: 95px;
            height: 95px;
        }
        .info {
          padding-left: 10px;
          line-height: 24px;
          width: 190px;
          .name {
            font-size: 16px;
            color: #666;
          }
          .desc {
            color: #999;
          }
          .price {
            font-size: 22px;
            color: @priceColor;
            i {
              font-size: 16px;
            }
          }
        }
      }
    }
  }
}
&:hover {
  .layer {
    display: block;
  }
}
li.brand {
  height: 180px;
  a {
    align-items: flex-start;
    img {
      width: 120px;
      height: 160px;
    }
    .info {
      p {
        margin-top: 8px;
      }
      .place {
        color: #999;
      }
    }
  }
}
.xtx-skeleton {
  animation: fade 1s linear infinite alternate;
}
@keyframes fade {
  from {
    opacity: 0.2;
  }
  to {
    opacity: 1;
  }
}
.adds{
display: none!important
}
</style>
